Low molecular weight -hydroxy carboxylic and dicarboxylic acids in reducing marine sediments

Details Low molecular weight -hydroxy carboxylic and dicarboxylic acids in reducing marine sediments Low molecular weight -hydroxy carboxylic and dicarboxylic acids in reducing marine sediments

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981gecoa..45.1847p&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 45, Issue 10, pp.1847-1854

Computer Science

Scientific paper

The occurrence and distribution of low molecular weight -hydroxy carboxylic and dicarboxylic acids was studied in reducing marine sediments collected in the Santa Barbara Basin and the Cariaco Trench. Four compounds were found to occur in both basin sediments: glycolic, lactic, oxalic and succinic acids. In general concentrations were low ( 1 mol/g for the hydroxy acids and 100 mol/g for the dicarboxylic acids), and generally decreased with depth. Subsurface maxima were observed for lactate and succinate in the Santa Barbara Basin. Both the vertical profiles and lactate enantiomer ratios suggested microbial origin and control for the distribution of these compounds. A preliminary model for the microbial mediation of the early diagenesis of organic compounds in reducing marine sediments is presented.

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